this happened to me in a Kmart a few months back...but the person who approached me was a clerk...i was able to talk here down and grab what i needed and checked out...all the while under an absolute look of death by a couple of the plain clothes employees who look around for shoplifters...it's like they put 2 and 2 together "mid 30's male, riding a bicycle, he's got a backpack on...yep, probably a thief"

when you think about thier position, you can't blame them...maybe they have had a rash of stealing going on recently so they have to take this approach with everybody who comes in the store with a bag, purse, or certainly a backpack